Control System Outputs - Manual Climate Control

Blower Motor Resistor 

The blower motor resistor has the following features:

• The assembly is located in the engine compartment on the evaporator housing toward the center of the vehicle
• Three resistor elements are mounted on the resistor board to provide 4 blower motor speeds
• Depending on the blower motor switch position, series resistance is added or bypassed in the blower motor circuit to decrease or increase blower motor speed
• A device to prevent overheating (thermal limiter) will open the resistor coil when the temperature reaches 121°C (250°F) interrupting the blower motor operation in all speeds except HI
• The thermal limiter cannot be reset and is not serviceable

Temperature Blend Door Actuator  

The temperature blend door actuator is located on the top of the plenum housing.

• Its function is to move the temperature blend door to the position indicated on the temperature control switch.
• The temperature blend door actuator contains a reversible electric motor.

Vacuum Control Motors 

Vacuum control motors are used to move the floor/panel, panel/defrost and air inlet mode doors.